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Power-Up Procedure www.ti.com
5.2 Jumpers
Table 2. Jumpers
JUMPER
FUNCTION PLACEMENT COMMENT
NO.
Connect EN1 to GND to disable V
OUT1
,
JP1 BUCK1 enable (EN1) connect EN1 to V
IN
to enable V
OUT1
;
Leave open to enable V
OUT1
Connect EN2 to GND to disable V
OUT2
,
JP2 BUCK2 enable (EN2) connect EN2 to V
IN
to enable V
OUT2
;
Leave open to enable V
OUT2
Connect LOW_P to GND to enter forced PWM
Low Power Mode
JP3 mode; Connect LOW_P to V
CC
to enter Cannot leave open
(LOW_P)
automatic PSM/PWM mode
6 Power-Up Procedure
1. Apply 4.5 V - 16 V to J3.
2. Toggle JP1 or JP2 to enable V
OUT1
and V
OUT2
respectively.
3. Apply loads to the output connectors.
10
List of Tables SLVU474B– August 2011– Revised December 2011
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